Botanischer Garten Oldenburg, Botanical garden in Oldenburg, Germany.

The Botanical Garden of Oldenburg is a garden facility with greenhouses and plant collections representing different climate zones from around the world. The site includes both public areas where visitors walk freely and separate research zones used for scientific work.

The garden was founded in 1882 as a teaching facility and later expanded to organize plant collections in a systematic way. Over time it became an important location for botanical research and education.

The garden's name honours Carl von Ossietzky, the Oldenburg-born pacifist and Nobel Peace Prize laureate after whom the university is named. Its "Grüne Schule" is an out-of-school learning site where school classes and other groups learn to observe closely, use microscopes and run experiments. The garden also keeps animals, notably birds in aviaries, plus bearded dragons and a tarantula in the succulent house.

The garden has different entrance areas and it helps to plan which sections you want to visit beforehand, as some areas are only open during certain hours. When weather is poor, the greenhouses offer a pleasant place to spend time while staying dry.

The garden displays plants from completely different geographical regions - from boreal forests to Mediterranean landscapes - all placed side by side in one location. This arrangement lets visitors experience the plant diversity of the earth in just a few hours of walking.